Brando today released the Iron Man Armor Power Bank external battery pack with 4000mAh capacity. The 4.65 ounce battery comes with a USB charging cable and sells for $65. Here's more info on this external battery for smartphones and mobile devices:

The Iron Man 3 Armor Power Pack with high capacity built-in 4000mAh lithium-ion battery works with most smart phones, tablets and USB enable devices. The stunning Iron Man 3 Power Pack with lighting and sound effect just like Iron Man when pressing the power button. Impressive lighting on armor when the power pack is powered on.